<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			div{
				width: 200px;
				height: 300px;
				float: left;
				margin-right: 30px;
				background: deepskyblue;
			}
			div:hover{
				/*border: 4px solid red;*/
				outline: 4px solid red;
			}
		</style>
	</head>
	<body>
		<div></div>
		<div></div>
		<div></div>
		<div></div>
		<div></div>
	</body>
</html>
